util.go (1283B)
1 // GoToSocial 2 // Copyright (C) GoToSocial Authors admin@gotosocial.org 3 // SPDX-License-Identifier: AGPL-3.0-or-later 4 // 5 // This program is free software: you can redistribute it and/or modify 6 // it under the terms of the GNU Affero General Public License as published by 7 // the Free Software Foundation, either version 3 of the License, or 8 // (at your option) any later version. 9 // 10 // This program is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU Affero General Public License for more details. 14 // 15 // You should have received a copy of the GNU Affero General Public License 16 // along with this program. If not, see <http://www.gnu.org/licenses/>. 17 18 package gtserror 19 20 import ( 21 "io" 22 23 "codeberg.org/gruf/go-byteutil" 24 ) 25 26 // drainBody will produce a truncated output of the content 27 // of given io.ReadCloser body, useful for logs / errors. 28 func drainBody(body io.ReadCloser, trunc int) string { 29 // Limit response to 'trunc' bytes. 30 buf := make([]byte, trunc) 31 32 // Read body into err buffer. 33 n, _ := io.ReadFull(body, buf) 34 35 if n == 0 { 36 // No error body, return 37 // reasonable error str. 38 return "<empty>" 39 } 40 41 return byteutil.B2S(buf[:n]) 42 }